Lesson 7 6
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This document provides the answers to homework problems from Lesson 7-6 of a textbook. It works through the steps of 6 sample problems, providing the solutions. It then lists the answers to 20 additional problems. It concludes by directing students to work as a group on an activity from Pearson SuccessNet, dividing up problems to complete within 10 minutes.
Lesson 7 6
- 1. Lesson 7-6Textbook Homework AnswersUse a pen to check. Some problems have been done for you.
- 2. Problem 2Add 1 to each side, simplify, multiply each side by 2, simplify
- 3. Problem 64x – 9 > -74x – 9 + 9 > -7 + 94x > 24x/4 > 2/4X > ½ On the number line, open circle on ½ (which is between 0 and 1) with arrow going to the right
- 4. Problem 10b/-7 + 7 ≤ 6b/-7 + 7 – 7 ≤ 6 – 7b/-7 ≤ -1b/-7 (-7) ≥ -1 (-7)b ≥ 7
- 5. Problem 16(x/-3) – 1 ≤ 5(x/-3) – 1 + 1 ≤ 5 + 1(x/-3) ≤ 6-3 (x/-3) ≥ -3 (6)X ≥ -18
- 6. Problem 18x/3 + 11 < 31x/3 + 11 – 11 < 31 – 11x/3 < 203 (x/3) < 3 (20)X < 60
- 7. Problem 20x/-6 – 2 < 4x/-6 – 2 + 2 < 4 + 2x/ -6 < 6-6 (x/-6) > -6 (6)X > -36
- 8. Problem 242 + 1.25x + 1 ≤ 103 + 1.25x ≤ 103 + 1.25x – 3 ≤ 10 – 31.25x ≤ 71.25x/1.25 ≤7/1.25X ≤ 5.6The farthest you can go is 5.6 miles
- 9. Answers4) m > -4; open circle arrow right6) X > ½; open circle arrow right8) A ≥ 4; closed circle arrow right10) B ≥ 712) X ≤ -214) M > -716) X ≥ -1818) X < 6020) X > -3622) A ≥ -224) 5.6 miles26) The student simplified -36/-12 to -3 instead of 3
- 10. Go To Pearson SuccessNetOpen up your activities page.As a group do the Puzzle: A Reading Assignment. Divide up the problems among your group. You will have about 10 minutes to complete this activity.